Maule Aerospace Technology, Inc. | Woodward Governor Company Airworthiness Directives

3 ADs indexed for Maule Aerospace Technology, Inc. | Woodward Governor Company aircraft.

Models

Flyweights 1 AD M-5-235C 1 AD PT6A-11 1 AD PT6A-11AG 1 AD PT6A-15AG 1 AD PT6A-20 1 AD PT6A-6 1 AD PT6A-6A 1 AD PT6A-6B 1 AD Primary turbo propeller governors 1 AD Governors 1 AD

Recent ADs

81-25-01

final rule

Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612

Unsafe Condition: Failure of the flyweights

Effective: Dec 7, 1981 Category: appliance Compliance: Within the next 50 hours time in service from the effective date of this AD

Why matched: Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612

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70-26-02

final rule

Airworthiness Directives; WOODWARD: Applies to Woodward Propeller Governors

Unsafe Condition: Loose or worn serrations on the propeller governor lever arm and speed control shaft could result in loss of propeller control.

Effective: Dec 27, 1970 Category: appliance Compliance: within the next 50 hours' time in service after the effective date of this AD

Why matched: Airworthiness Directives; WOODWARD: Applies to Woodward Propeller Governors

Technical illustration of an aircraft propeller assembly
Problem area Propeller
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70-16-01

final rule

Airworthiness Directives; WOODWARD: Applies to Woodward Governor Company Primary Turbo Propeller Governors Mounted on United Aircraft of Canada PT6A Series Engines

Unsafe Condition: Failure of the lock pitch solenoid valve or autofeathering solenoid valve due to insufficient safety wire security on coil retaining screws could result in uncontrolled feathering.

Effective: Aug 4, 1970 Category: appliance Compliance: within the next 50 hours' time in service after the effective date of this AD

Why matched: Airworthiness Directives; WOODWARD: Applies to Woodward Governor Company Primary Turbo Propeller Governors Mounted on United Aircraft of Canada PT6A Series Engines

Technical illustration of an aircraft electrical generator and wiring assembly
Problem area Electrical system
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